0.00000256137168039646980824843231247 Zeta Prime 1MOD4 (8) 0.00001281844859979526825102658216651 Zeta Prime 1MOD4 (7) 0.00002627703710991833669946659763051 Stieltjes 17th Constant 0.00002746380660376015886000760369336 Stieltjes 13th Constant (Neg) 0.00003439477441808804817791462379823 Stieltjes 09th Constant (Neg) 0.00006425096366477379110181913804358 Zeta Prime 1MOD4 (6) 0.00010443776975600011581079567436772 Stieltjes 21th Constant 0.00015259399483743409071519071037061 Zeta Prime 3MOD4 (8) 0.00016 Cameron Sum-Free Set Constant 0.00016727291210514019335350154334118 Stieltjes 12th Constant 0.00019969685830896977470778456320324 Stieltjes 16th Constant (Neg) 0.00020533281490906479468372228923707 Stieltjes 10th Constant 0.00020920926205929994583713969734458 Stieltjes 14th Constant (Neg) 0.00022067470817621316927799087337602 Du Bois Reymond 6th Constant 0.00022067470817621316927799087337602 (e^6-6e^4+3e^2-98)/32 0.00023876934543019960987242184190800 Stieltjes 06th Constant (Neg) 0.00027018443954390352667290208206796 Stieltjes 11th Constant 0.00028346865532024144664293447499713 Stieltjes 15th Constant (Neg) 0.00030736840814925282659275475194863 Stieltjes 18th Constant 0.00032347403422179751851190818604108 Zeta Prime 1MOD4 (5) 0.00035212335380303950960205216500121 Stieltjes 08th Constant (Neg) 0.00045851440753379726687311214728222 Zeta Prime 3MOD4 (7) 0.00046634356151155944940059482443355 Stieltjes 20th Constant 0.00050360545304735562905559643771716 Stieltjes 19th Constant 0.00052728956705775104607409750547886 Stieltjes 07th Constant (Neg) 0.00054159958220399770165519617317411 Stieltjes 22th Constant (Neg) 0.00065680351863715443150477300335622 Stieltjes 26th Constant 0.00079332381730106270175333487744444 Stieltjes 05th Constant 0.00107459195273848882472429198735317 Stieltjes 25th Constant (Neg) 0.00124396209040824577929974159953717 Stieltjes 23th Constant (Neg) 0.00131764115485317810981735232251359 Product(1-(p^9-(p-1)^7(p^2+7p+1)/p^9, p=2, 3, ...) 0.00131764115485317810981735232251359 Heath-Brown-Moroz Constant 0.00138083588697173916303185412801582 Zeta Prime 3MOD4 (6) 0.00158851127890356156190619661152112 Stieltjes 24th Constant (Neg) 0.00164958415402929159899676131363885 Zeta Prime 1MOD4 (4) 0.00205383442030334586616004654275338 Stieltjes 03rd Constant 0.00232537006546730005746817017752607 Stieltjes 04th Constant 0.00347783691361853820900735957425881 Stieltjes 27th Constant 0.00355772885557316094791353774890840 Stieltjes 30th Constant 0.00406140536651783056052343914268308 Zeta Prime(8) 0.00418154344970245961430633435281463 Zeta Prime 3MOD4 (5) 0.00524070467770477114856892007010589 Du Bois Reymond 4th Constant 0.00524070467770477114856892007010589 (e^4-4e^2-25)/8 0.00640006853170062945810722822194586 Stieltjes 28th Constant 0.00737115177047223913441240242355940 Stieltjes 29th Constant 0.00751332599781522893313516008157615 Stieltjes 31th Constant (Neg) 0.00828383285613359253512413872944872 Zeta Prime(7) 0.00875508273297050449422676581374668 Zeta Prime 1MOD4 (3) 0.00922810115309267664265765437472155 Hardy-Littlewood C16 Constant 0.00969036319287231848453038603521253 Stieltjes 02nd Constant (Neg) 0.01084101512231113615112908114064151 Trott Constant 0.01284355561021755334362253461951902 Zeta Prime 3MOD4 (4) 0.01707008685063651295413367326605940 Zeta Prime(6) 0.01745329251994329576923690768488613 Pi/180 0.01831563888873418029371802127324124 e^(-4) 0.01831563888873418029371802127324124 Rényi Parking Constant 0.02037304360386131270575189730254736 Stieltjes 35th Constant (Neg) 0.0219875218 Gauchman Constant 0.02570372910842040179348788378034992 Stieltjes 32th Constant (Neg) 0.0282517642 Du Bois Reymond 3rd Constant 0.02924416212509130867185342942446032 Hardy-Littlewood C15 Constant 0.0333810598 Feigenbaum-Coullet-Tresser Constant 0.03539325984446370442745559680194106 Hardy-Littlewood C12 Constant 0.03557621135331594029116951225880855 Percolation Cluster Density Constant 0.03557621135331594029116951225880855 -41/16+3*3^(1/2)/2 0.03575501748392425713281824253885571 Zeta Prime(5) 0.0381563991 Rényi Parking Constant 0.04100755656647303192888654885196003 Zeta Prime 3MOD4 (3) 0.04180405081218165710397487284246412 Hardy-Littlewood C10 Constant 0.04321391826377224977441773717172801 e^(-Pi) 0.04452526726692290615135272972853902 Pi^(-e) 0.04510673410808021990498284969956376 Stieltjes 33th Constant (Neg) 0.05112692802150846442507582003801216 Stieltjes 34th Constant (Neg) 0.05381376357405767028067828734153656 Zeta Prime 1MOD4 (2) 0.0605742294 Euler Totient Function Asymptotic Constant 0.06284463394360742176345985091139351 Hardy-Littlewood C14 Constant 0.0653514259 Norton Constant 0.065770 Percolation Cluster Density Constant 0.06598803584531253707679018759684642 e^(-e) 0.07248215881681133373380044422036407 Stieltjes 36th Constant 0.07281584548367672486058637587490132 Stieltjes 01st Constant (Neg) 0.07699313976424684494261929593315787 Zeta Prime(4) 0.09453082851354715843379715599107209 Hardy-Littlewood C11 Constant 0.0946198928 Non-Alternating Series Of Reciprocal Primes, Squared 0.097 Self-Numbers Density Constant (Base 10) 0.10132118364233777144387946320972764 Pi^(-2) 0.10765391922648457661532344509094719 One-Ninth Constant 0.10765391922648457661532344509094719 Varga Constant 0.11170390956324495377121045465608233 Hardy-Littlewood C13 Constant 0.11494204485329620070104015746959874 Kepler-Bouwkamp Constant 0.11494204485329620070104015746959874 Product(Cos(Pi/n), n=3..Inf) 0.12017120677474172146998946463847738 Hardy-Littlewood C09 Constant 0.12345678910111213141516171819202122 Natural Integers Concatenated 0.12345678910111213141516171819202122 Champernowne Constant 0.14758361765043327417540107622474053 Arctan(1/2)/Pi 0.14758361765043327417540107622474053 Plouffe Constant 0.14843365646700782822586507749071137 Zeta Prime 3MOD4 (2) 0.14855 4D Critical Point (Lenz-Ising Constant) 0.1490279983517850 Conway's Impartial Misere Games Constant 0.1490279983517850 Gamma(0) Of Conway 0.14966 4D Inverse Critical Temperature (Lenz-Ising Constant) 0.1715004931 Hall-Montgomery Delta Zero Constant 0.17157287525380990239662255158060384 Heilbronn Ttriangle Constant 0.17157287525380990239662255158060384 S[0, 5, (1, 4)] 0.17157287525380990239662255158060384 3-2*2^(1/2) 0.17476263929944353642311331466570670 Zeta Prime(3) 0.17897974447216727023202884582490974 (2/Pi)*Si(Pi)-1 0.17897974447216727023202884582490974 Gibbs-Wilbraham Constant 0.17897974447216727023202884582490974 2G/Pi - 1 0.1807171047 Zagier Constant 0.18661429735835839665692484794418834 Hardy-Littlewood C06 Constant 0.18785964246206712024851793405427323 Mrb Constant 0.18785964246206712024851793405427323 1^(1/1)-2^(1/2)+3^(1/3)-4^(1/4)+5^(1/5)... 0.1895600483 Entropy of Folding of the Triangular Lattice 0.19231551682118458966319237441963591 gamma^3 0.19245008972987525483638292683398582 Heilbronn Triangle Constant 0.19245008972987525483638292683398582 S[0, 5, (5, 10)] 0.19245008972987525483638292683398582 3^(1/2)/9 0.19452804946532511361521373028750391 (e^2-7)/2 0.19452804946532511361521373028750391 Du Bois Reymond 2nd Constant 0.19452804946532511361521373028750391 S[0, 5, 7, 9, 11, etc.] 0.1994588183 Vallée Constant 0.20787957635076190854695561983497877 e^(-Pi/2) 0.20787957635076190854695561983497877 i^i 0.20788622497735456601730672539704930 Zeta(-1/2) (Negative) 0.209 Self-Numbers Density Constant (Base 4) 0.21759 Cameron Sum-Free Set Constant (Lower Bound) 0.218094 3D Critical Point 0.218094 Lenz-Ising Constant 0.21862 Cameron Sum-Free Set Constant (Upper Bound) 0.221654 Lenz-Ising Constant 0.221654 3D Inverse Critical Temperature 0.22451725198323206266512829374391429 gamma^e 0.2299 Entropy of Folding of The Square-Diagonal Lattice 0.23241933458671654620613021267066423 Hardy-Littlewood C08 Constant 0.2351252848 Conway-Guy Constant 0.23571113171923293137414347535961677 Copeland-Erdos Constant (Prime Numbers) 0.23571113171923293137414347535961677 Primes Concatenated 0.23602638227430150272098176219937956 Stieltjes 37th Constant 0.2388354503 Moser Worm Constant (Lower Bound) 0.23965124750693875989694987949487026 Quadtree Constant 0.23965124750693875989694987949487026 24*A-26*Pi^2+228 0.24197072451914334979783019293556065 (2*Pi*e)^(-1/2) 0.247 Abundant Numbers Density Constant 0.24872155939461546508449191044038342 Stieltjes 40th Constant 0.25 Koebe Constant (Exact) 0.252660259 Self-Numbers Density Constant 0.25366950790104801363656336637683623 Hermite Constant in 8 Dimensions 0.25366950790104801363656336637683623 Pi^4/384 0.25881940379280679840518356018920396 Ai'(0) (Negative) 0.25881940379280679840518356018920396 Airy Function Constant C2 0.25881940379280679840518356018920396 3^(-1/3)/Gamma(1/3) 0.26149721284764278375542683860869586 Hadamard-De-La-Vallee-Poussin Constant 0.26149721284764278375542683860869586 lim ( Sum(1/p) - log(log(n))) where p = prime 0.26149721284764278375542683860869586 M 0.26149721284764278375542683860869586 Meissel-Mertens Constant 0.2649320846 Mrs. Miniver's constant 0.2649320846 Overlapping Circles Constant 0.2677868402 Unforgeable Word Constant 0.2696065 Alternating Series Of Reciprocal Primes 0.2697318462 Pell-Stevenhagen Constant 0.272190 Cassaigne-Finch Constant 0.27524 Moser Worm Constant (Upper Bound) 0.28016949902386913303643649123067200 Bernstein Constant 0.28136 Pell-Stevenhagen Constant 0.28674742843447873410789271278983845 Product(1-(3p-2)/p^3, p=2, 3, ...) 0.28674742843447873410789271278983845 Product(1-1/(p+1)^2, p=2, 3, ...)*36/Pi^4 0.28674742843447873410789271278983845 Strongly Carefree Constant 0.2887880950 Q 0.2887880950 Digital Search Tree Constant 0.29156090403081878013838445646839492 2D Dimer Constant 0.29156090403081878013838445646839492 G/Pi 0.29529787314571257309977442921048948 Pi^3/105 0.29529787314571257309977442921048948 Hermite Constant in 7 Dimensions 0.2974615529 Pythagorean Triple Constant 0.3001 Rectilinear Crossing Constant (Lower Bound) 0.30051422578989857134993454037786250 A/4 0.30051422578989857134993454037786250 Nielsen-Ramanujan Constant 0.30051422578989857134993454037786250 Zeta(3)/4 0.30102999566398119521373889472449303 Log(2) 0.30366300289873265859744812190155623 Gauss-Kuzmin-Wirsing Constant 0.30396355092701331433163838962918292 3/(Pi^2) 0.30749487875832709312335448607107685 Hardy-Littlewood C04 Constant 0.30749487875832709312335448607107685 Product(1-(6p^2-4p+1)/(p-1)^4, p=5, 7, ...) 0.3084437795 Zygmund's Constant 0.30901699437494742410229341718281906 Maximum Inradius Constant 0.30901699437494742410229341718281906 S[0, 3, (4)] 0.30901699437494742410229341718281906 (-1+5^(1/2))/4 0.30915070842243319682858675033539770 (8/3)*(gamma-ln(2)) (Negative) 0.30915070842243319682858675033539770 Geometric Probability Constant 0.3166841737 Atkinson-Negro-Santoro Constant 0.31830988618379067153776752674502872 1/Pi 0.32263409893924467057953169254823707 Product(1-2/p^2, p=2, 3, ...) 0.32263409893924467057953169254823707 Feller-Tornier Constant 0.3230659472 ln(Beta) 0.33317792380771867431837613635524423 gamma^2 0.33333333333333333333333333333333333 Renyi's Parking Constant 0.33333333333333333333333333333333333 Geometric Probability Constant (Center, Unit 01-Cube) 0.3405373296 Pólya Random Walk Constant 0.34729635533386069770343325353862959 Percolation Cluster Density Constant 0.34729635533386069770343325353862959 2*sin(Pi/18) 0.35323637185499598454351655043268201 Hafner-Sarnak-Mccurley Constant 0.35502805388781723926006318600418318 Ai(0) 0.35502805388781723926006318600418318 3^(-2/3)/Gamma(2/3) 0.3605924719 Im(i^i^i^...) 0.3611030805 Circular Coverage Constant (12 Disks) 0.3625364234 Identity Trees Enumeration Constant 0.36651292058166432701243915823266947 ln(ln(2)) (Negative) 0.36787944117144232159552377016146087 e^(-1) 0.36787944117144232159552377016146087 S[0, 2, 1, 2, (1, 1, n where n = 4, 6, 8, etc.)] 0.36943751038649868932319074987675078 Hardy-Littlewood C07 Constant 0.37250741078136663446199186658011913 Real Root of Ei(x) 0.3728971438 Extreme Value Constant 0.37294754558206493956347755867995811 Pi^3/(48*3^(1/2)) 0.37294754558206493956347755867995811 Hermite Constant in 6 Dimensions 0.3733646177 Binary Search Tree Constant 0.37395581361920228805472805434641642 Artin Constant 0.37395581361920228805472805434641642 C 0.37395581361920228805472805434641642 Product(1-1/p(p-1), p=2, 3, prime ...) 0.3755012868 Maximum Inradius Constant 0.380006 Circular Coverage Constant (11 Disks) 0.38259785823210634567238300819824840 Geometric Probability Constant 0.38259785823210634567238300819824840 (2^(1/2)+ln(1+2^(1/2)))/6 0.3838 Rectilinear Crossing Constant (Upper Bound) 0.38894518997956192931157878976445091 Product(1-1/(p^2-2), p=2, 3, ...) 0.38981434460254661791654504537930938 (2^e)^(-1/2) 0.39207289814597337133672322074163417 1-6/(Pi^2) 0.39493084363469845756711734919073459 Circular Coverage Constant (10 Disks) 0.39493084363469845756711734919073459 1/(1+2*cos(2*Pi/9)) 0.39894228040143267793994605993438187 (2*Pi)^(-1/2) 0.39908993417905752478250359150769595 Log((2*Pi)^(1/2)) (Negative) 0.39952466670968 Quadratic Recurrence Constant 0.40987488508823647447878121233795528 Product(1-(10p^3-10p^2+5p-1)/(p-1)^5, p=7, 11, ...) 0.40987488508823647447878121233795528 Hardy-Littlewood C05 Constant 0.41054899823486619393984542341573576 gamma-1/6 0.412454033640107597783361 Prouhet-Thue-Morse Constant 0.41421356237309504880168872420969808 2^(1/2)-1 0.41421356237309504880168872420969808 Circular Coverage Constant (09 Disks) 0.41421356237309504880168872420969808 S[0, (2)] 0.41468250985111166024810962215430771 Prime Numbers Coded In Binary Expansion 0.4159271090 Extreme Value Constant 0.4203723394 Minkowski-Bower Constant 0.4207263771 Integer Chebyshev Constant (Conjectured) 0.4212795439 Schlüter Ten Disc Constant 0.42138295663609725845363159698198206 Levy Constant 0.42138295663609725845363159698198206 (6*ln(2))/(Pi^2) 0.42824950567709444021876570758182355 Product(1-(2p-1)/p^3, p=2, 3, ...) 0.42824950567709444021876570758182355 Product(1-1/p(p+1), p=2, 3, ...)*6/Pi^2 0.42824950567709444021876570758182355 Carefree Constant 0.42896344638480915273686154653896041 Stieltjes 38th Constant 0.43233235838169365405300025251375780 (1-e^(-2))/2 0.43233235838169365405300025251375780 Rényi Parking Constant 0.43233235838169365405300025251375780 S[0, 2, 3, 5, 7, 9, 11, etc.] 0.43301270189221932338186158537646809 Maximum Inradius Constant 0.43301270189221932338186158537646809 S[0, 2, (3, 4)] 0.43301270189221932338186158537646809 3^(1/2)/4 0.43429448190325182765112891891660508 ln(10)^(-1) 0.43429448190325182765112891891660508 Log(e) 0.4382829367 Re(i^i^i^...) 0.43992401257102530404090339143454476 Second Tree-Growth Constant 0.43992401257102530404090339143454476 Otter Tree Enumeration Constant 0.44068679350977151261630466248989615 ln(2^(1/2)+1)/2 0.44504186791262880857780512899358952 1/(1+2*cos(2*Pi/7)) 0.44504186791262880857780512899358952 Circular Coverage Constant (08 Disks) 0.4466 3D Dimer Constant (Estimated) 0.44721359549995793928183473374625525 1st Diophantine Approximation Constant 0.44721359549995793928183473374625525 5^(-1/2) 0.44721359549995793928183473374625525 Hurwitz Value Of First Diophantine Approximation Constant 0.44721359549995793928183473374625525 S[0, 2, (4)] 0.45224742004106549850654336483224793 Meissel-Mertens Constant 0.45224742004106549850654336483224793 Zeta Prime(2) 0.4545121805 Alladi-Grinstead Constant 0.4545121805 Infinite Product Constant 0.461543 Stieltjes Constant 0.461543 Sum(1/rho(n)^2, n=1..inf), rho(n)=nth Zeta Zero (Negative) 0.46364760900080611621425623146121440 Arctan(1/2) 0.46525761330925863561050406241129369 Hermite Constant in 5 Dimensions 0.46525761330925863561050406241129369 Pi^2/(15*2^(1/2)) 0.4702505696 Conway-Guy Constant * 2 0.4718616534 Bloch Constant (Conjectured) 0.47494937998792065033250463632798297 Weierstrass Constant 0.47712125471966243729502790325511531 Log(3) 0.47841760435743447533796399950460454 4*Pi^2-39 0.47841760435743447533796399950460454 Quadtree Constant 0.48029597822752647971255397569690318 Geometric Probability Constant 0.48029597822752647971255397569690318 (6*3^(1/2)+12*ln(2+3^(1/2))-Pi)/48 0.48045301391820142466710252632666497 ln(2)^2 0.48121182505960344749775891342436842 ln(1/2 + 1/2*5^(1/2)) 0.48121182505960344749775891342436842 ln(phi) 0.4876227781 Gaussian Twin Prime Constant 0.4945668172 Shapiro-Drinfeld Cyclic Sum Constant 0.49714987269413385435126828829089887 Log(Pi) 0.5 Geometric Probability Constant (Corner, Unit 01-Cube) 0.5 Circular Coverage Constant (07 Disks) 0.51792184269292371897889305751620810 Stieltjes 39th Constant 0.52140543316472067833098235660724397 Geometric Probability Constant (Center, Unit 02-Cube) 0.52140543316472067833098235660724397 (2^(1/2)+2+5*ln(1+2^(1/2)))/15 0.52359877559829887307710723054658381 Madelung Constant 0.52359877559829887307710723054658381 Pi/6 0.53071182047204479497294377247297717 Product(1-1/(p^2-1), p=2, 3, ...) 0.5313399499 Pythagorean Triple Constant 0.5349496061 Otter Tree Enumeration Constant 0.54030230586813971740093660744297660 Cos(1) 0.5432588 Landau Constant (Conjectured) 0.54953931298164482233766176880290779 ln(gamma) (Negative) 0.5530512933 Kuijlaars-Saff Constant 0.5559052114 Circular Coverage Constant (06 Disks) 0.5559052114 Bezdek's Six Disc Constant r(6) 0.5598656169 Product((1-p)^(1/p)), p=2, 3, ...) 0.56145948356688516982414321479088079 e^(-gamma) 0.56145948356688516982414321479088079 Euler Constant 0.56145948356688516982414321479088079 Golomb-Dickman Constant 0.56145948356688516982414321479088079 Totient Function 0.56418958354775628694807945156077259 Pi^(-1/2) 0.56714329040978387299996866221035555 Lambert Function Omega 0.56714329040978387299996866221035555 Omega Constant 0.56714329040978387299996866221035555 Solution Of x*e^(x) = 1 0.56714329040978387299996866221035555 W(1) 0.56850 Quadtree Constant 0.5697515829 Weakly Carefree Constant 0.5731677401 Landau-Ramanujan Constant * 3/4 0.57339 Pell-Stevenhagen Constant 0.57595996889294543964316337549249669 Stephens Constant 0.57595996889294543964316337549249669 Product(1-p/(p^3-1), p=2, 3, ...) 0.57721566490153286060651209008240243 Euler-Mascheroni Constant 0.57721566490153286060651209008240243 gamma 0.57721566490153286060651209008240243 Gamma'(1) (Negative) 0.57721566490153286060651209008240243 Stieltjes 00th Constant 0.57735026918962576450914878050195746 3^(-1/2) 0.57735026918962576450914878050195746 S[0, 1, (1, 2)] 0.57786367489546085895504659165634815 Pi/(2*e) 0.57841676278890075907460205814619567 (8/7)*cos(2*Pi/7)*cos(Pi/7)^2 0.5805775582 Pell Constant 0.58194865931729079792814988450236756 Landau-Ramanujan Constant (2nd order) 0.58312180806163756027676891293678984 2G/pi 0.58312180806163756027676891293678984 ln(Dimer Constant) 0.59263271820163619710407860499570147 Lehmer Constant 0.59634736232319407434107849936927938 Continued Fraction Constant 0.59634736232319407434107849936927938 e*Ei(-1) (Negative) 0.59634736232319407434107849936927938 Euler-Gompertz Constant 0.59634736232319407434107849936927938 Int(e^(-x)/(1+x),x=0..Inf) 0.60459978807807261686469275254738524 Sum(1/n/Binomial(2*n,n),n=1..Inf) 0.60459978807807261686469275254738524 (1/9)*Pi*3^(1/2) 0.60653065971263342360379953499118045 S[0, 1, 1, (1, 1, n where n = 5, 9, 13, etc.)] 0.60653065971263342360379953499118045 e^(-1/2) 0.60792710185402662866327677925836583 Hafner-Sarnak-McCurley Constant 0.60792710185402662866327677925836583 6/Pi^2 0.60792710185402662866327677925836583 1/Zeta(2) 0.6093828640 Circular Coverage Constant (05 Disks) 0.6093828640 Neville Five Disc Constant 0.6134752692 Strongly Triple-Free Set Constant 0.61685027506808491367715568749225945 delta-sub-4 0.61685027506808491367715568749225945 Pi^2/16 0.61685027506808491367715568749225945 Hermite Constant in 4 Dimensions 0.61803398874989484820458683436563812 S[0, (1)] 0.61803398874989484820458683436563812 phi-1 0.62432998854355087099293638310083724 Golomb Constant 0.62432998854355087099293638310083724 Golomb-Dickman Constant 0.62831853071795864769252867665590058 Pi/5 0.6294650204 xi-sub-1 0.6294650204 Davison-Shallit Constant 0.6294650204 Cahen Constant 0.63092975357145743709952711434276085 ln(2)/ln(3) 0.63168 Quadtree Constant 0.6333683473 Atkinson-Negro-Santoro Constant * 2 0.63516635460427120720669659127252242 2 D / 9 0.63516635460427120720669659127252242 C-sub-3 0.63516635460427120720669659127252242 Product(1-(3p-1)/(p-1)^3, p=5, 7, ...) 0.63516635460427120720669659127252242 Hardy-Littlewood C03 Constant 0.63661977236758134307553505349005745 2*Pi^(-1) 0.6419448385 Non-Alternating Series Of Reciprocal Primes 0.64341054628833802618225430775756476 Sum((-1)^(i+1)/(a(i)-1),i=1..Inf) where a(i) is the Sylvester sequence a(1) = 2, a(2) = 3, a(3) = 7, ... a(n+1) = a(n)^2-a(n)+ 1 0.64341054628833802618225430775756476 Cahen Constant 0.6556795424 Euler-Gompertz Constant 0.6556795424 Continued Fraction Constant 0.66016181584686957392781211001455578 C2 0.66016181584686957392781211001455578 Hardy-Littlewood C02 Constant 0.66016181584686957392781211001455578 Product(1-1/(p-1)^2, p=3, 5, ...) 0.66016181584686957392781211001455578 Shall-Wilson Constant 0.66016181584686957392781211001455578 Twin Primes Constant 0.66131704946962233528976584627411853 Product(1-2/p^2, p=2, 3, ...)+1)/2 0.66131704946962233528976584627411853 Feller-Tornier Constant 0.66170718226717623515583113324841358 (4+17*2^(1/2)-6*3^(1/2)+21*ln(1+2^(1/2))+42*ln(2+3^(1/2))-7*Pi)/105 0.66170718226717623515583113324841358 Geometric Probability Constant (Center, Unit 03-Cube) 0.66170718226717623515583113324841358 Robbins Constant 0.66274341934918158097474209710925291 Laplace Limit Constant 0.6675276 Magic Geometric Constant (Lower Bound) 0.6675284 Magic Geometric Constant (Upper Bound) 0.66958029053906236763502569561243423 Product(1-1/(p^2+p-1), p=2, 3, ...) 0.6697409699 Shanks Constant 0.67 Erdös-Lebensold Constant 0.6749814429 Graham Hexagon Constant 0.67906 Quadtree Constant 0.6864067314 Hardy-Littlewood Constant 0.69220062755534635386542199718278976 e^(-1/e) 0.69314718055994530941723212145817657 ln(2) 0.69750135849636590328467035082092292 Pappalardi Constant 0.69750135849636590328467035082092292 Product(1-1/p^2(p-1), p=2, 3, ...) 0.69750135849636590328467035082092292 Artin Constant (Rank 2) 0.69777465796400798200679059255175260 Euler-Gompertz Constant 0.69777465796400798200679059255175260 Continued Fraction Constant [0,1,2,3,..] 0.69777465796400798200679059255175260 S[0, 1, 2, 3, 4, 5, 6, 7, etc.] 0.69777465796400798200679059255175260 Bessell(1,2)/Bessell(0,2) 0.69953887 Otter Tree Enumeration Constant 0.70258 Embree-Trefethen's Constant 0.70444220099916559273660335032663721 Product(1-1/p(p+1), p=2, 3, ...) 0.70444220099916559273660335032663721 Carefree Constant 0.70447988104318149995535156563829439 1-35/(12*Pi^2) 0.70523017179180096514743168288824851 Sum Of The Product Of Inverse Of Primes 0.70710678118654752440084436210484904 2^(1/2)/2 0.70710678118654752440084436210484904 Circular Coverage Constant (04 Disks) 0.70710678118654752440084436210484904 S[0, 1, (2)] 0.70980344286129131464178739944457560 Prouhet-Thue-Morse Constant 0.70980344286129131464178739944457560 Rabbit Constant 0.71478270079129427201898487962108410 4/153*(1+2*sqrt(2))*sqrt(51) 0.71478270079129427201898487962108410 Traveling Salesman Constant (Conjectured) 0.71546823598995584509477470571172808 Product(1-1/(p^2-p-1), p=3, 5, ...) 0.71615 Quadtree Constant 0.71957484690130035068887391121968542 Stieltjes 41th Constant (Neg) 0.72360679774997896964091736687312762 (1/2)*(1+1/5^(1/2)) 0.72360679774997896964091736687312762 S[0, 1, 2, (1)] 0.72364840229820000940884914980912760 Sarnak Constant 0.72364840229820000940884914980912760 Product(1-(p+2)/p^3, p=3, 5, ...) 0.72520648300641149762823275124865424 Langford Constant 0.72520648300641149762823275124865424 Geometric Probability Constant 0.72520648300641149762823275124865424 97/150+Pi/40 0.73639985871871507790979516836492350 Sum(1/binomial(2*n,n),n=1..Inf) 0.7373383033 Grossman Constant 0.7377507574 Whittaker-Goncarov Constant (Conjectured) 0.74048048969306104116931349834344895 Densest Spatial Packing Of Spheres 0.74048048969306104116931349834344895 Hermite Constant in 3 Dimensions 0.74048048969306104116931349834344895 Pi/(3*2^(1/2)) 0.74397119335037474468655960758565000 Product(1-(p+2)/p^3, p=3, 5, ...)*5*Pi^2/48 0.74397119335037474468655960758565000 Sarnak Constant 0.74397119335037474468655960758565000 Product(1-(p+2)/p^3, p=2, 3, ...) 0.74759792025341143517873094363652421 Renyi Parking Constant 0.7520107423 Abelian Group Enumeration Constant 0.7608657675 Bateman-Stemmler Constant / 2 0.76422365358922066299069873125009233 K 0.76422365358922066299069873125009233 Landau-Ramanujan Constant 0.76519571646421269134476601639649680 Geometric Probability Constant (Corner, Unit 02-Cube) 0.77588351000389549962040428442790061 Strongly Carefree Constant 0.77588351000389549962040428442790061 Product(1-1/(p+1)^2, p=2, 3, ...) 0.7759021363 Bender Constant 0.77766565358626711533793409461781951 Geometric Probability Constant (Center, Unit 04-Cube) 0.7834305107121344 Sum((-1)^(n+1)/n^n, n=1..Inf) 0.784190373377122 3D Steiner Ratio 0.78539816339744830961566084581987572 Moser Worm Constant 0.78539816339744830961566084581987572 Kepler-Bouwkamp Constant 0.78539816339744830961566084581987572 Pi/4 0.78816250003022070057694959305350397 Product(1-1/p(p^2-1), p=2, 3, ...) 0.7885305659 Lüroth Analog of Khintchine Constant 0.7916031835 Otter Tree Enumeration Constant 0.7922082381 Lal Constant 0.79450719277947927624036241563604565 Kolakoski Constant 0.8008134543 Bender Constant 0.8093940205406391307179 e^(c-1) where c = sum(1/k*Log(k/(k-1)),k=2..Inf) 0.8093940205406391307179 Alladi-Grinstead Constant 0.81168692154477931 Flajolet Constant 0.81168692154477931 Product((n/(n+1))^((-1)^t(n-1)),n = 1 .. Inf) 0.8125565590 Stolarsky-Harborth Constant 0.81318 Odlyzko-Rains Constant 0.81642150902189314370807973753052522 Sum(1/2^(2^n), n=0..Inf) 0.82246703342411321823620758332301259 Traveling Salesman Constant 0.82246703342411321823620758332301259 Nielsen-Ramanujan Constant 0.82246703342411321823620758332301259 Pi^2/12 0.82246703342411321823620758332301259 Zeta(2)/2 0.8249080672 Prouhet-Thue-Morse Constant * 2 0.8254994054 Product(1-32/n^5, n=1..Inf) 0.82571178359094347818969200828642595 Universal Coverage Constant (Lower Bound) 0.82571178359094347818969200828642595 Pi/8 + 3^(1/2)/4 0.82699334313268807426698974746945416 3*3^(1/2)/(2*Pi) 0.82699334313268807426698974746945416 Asymptotic Efficiency 0.83236723690531642484909544627610449 Feigenbaum Constant 0.8324290656 Rosser Constant 0.83462684167 M^(-1) 0.83462684167 Gauss Lemniscate Constant 0.8371132123 B3' 0.84147098480789650665250232163029900 Sin(1) 0.84276591327219451690726319396396412 Levy Constant 0.84276591327219451690726319396396412 12*ln(2)/Pi^2 0.84413770 Universal Coverage Constant (Upper Bound) 0.84721308479397908660649912348219164 Arithmetic Geometric Mean Of 1 And 2^(-1/2) 0.84721308479397908660649912348219164 M/2^(1/2) 0.84721308479397908660649912348219164 U Number 0.85654044485354217442616798413595388 Pappalardi constant 0.85654044485354217442616798413595388 Product(1-1/p^3(p-1), p=2, 3, ...) 0.8621470373 Flajolet-Vallée Constant ^ 2 0.86224012586805457155779028324939458 0.8657725922 Integer Chebyshev Constant (Conjectured) 0.86602540378443864676372317075293618 2D Steiner Ratio 0.86602540378443864676372317075293618 3^(1/2)/2 0.86602540378443864676372317075293618 Circular Coverage Constant (03 Disks) 0.86602540378443864676372317075293618 S[0, 1, 6, (2, 6)] 0.8705883799 B4 0.8711570464148937 Product((2*n/(2*n+1))^((-1)^t(n-1)),n = 1 .. Inf) 0.8711570464148937 Flajolet Constant 0.87853091526748027717891679633622475 Geometric Probability Constant (Center, Unit 05-Cube) 0.88151383972517077692839182290322785 Average Class Number Constant 0.88151383972517077692839182290322785 Product(1-1/p^2(p+1), p=2, 3, ...) 0.88151383972517077692839182290322785 Quad. Class Number 0.88560319441088870027881590058258873 Gamma(Xm) s.t. Gamma'(Xm)=0 0.88622692545275801364908374167057259 Pi^(1/2)/2 0.88622692545275801364908374167057259 Gamma(3/2) 0.89053620899509899261825205155358977 e^(gamma)/2 0.8928945714 Reciprocal Sum Of Integer Powers 0.90177 Odlyzko-Rains Constant 0.90192603958708217137771520255047193 Product(1-1/p^2(p^2-1), p=2, 3, ...) 0.90689968211710892529703912882107787 Densest Planar Packing Of Circles 0.90689968211710892529703912882107787 Hermite Constant in 2 Dimensions 0.90689968211710892529703912882107787 Pi/(2*3^(1/2)) 0.91596559417721901505460351493238411 G 0.91596559417721901505460351493238411 Sum((-1)^n/(2n+1)^2) 0.91596559417721901505460351493238411 Catalan Constant 0.91893853320467274178032973640561764 ln((2pi)^(1/2)) 0.91893853320467274178032973640561764 Zeta'(0) (Negative) 0.9285187329 Flajolet-Vallée Constant 0.92969539834161021498538497366587812 ln(2)/2+2*G/Pi 0.93126518416000433438923720555067698 Pappalardi Constant 0.93126518416000433438923720555067698 Product(1-1/p^4(p-1), p=2, 3, ...) 0.93754825431584375370257409456786498 Zeta'(2) (Negative) 0.93754825431584375370257409456786498 Zeta(1,1/2) (Negative) 0.93754825431584375370257409456786498 Zeta(1,2) (Negative) 0.94773326214367537593952153765418961 Product(1-1/p^3(p+1), p=2, 3, ...) 0.94773326214367537593952153765418961 Quad. Class Number 0.96059195645505295942510795139380636 Geometric Probability Constant (Corner, Unit 03-Cube) 0.96894208303674677280606589466689986 Geometric Probability Constant (Center, Unit 06-Cube) 0.9730371351 Quadtree Constant 0.97336024835078271546888686244789657 Zeta(1/3) (Negative) 0.97582415304766824167901143659479983 Quad. Class Number 0.97582415304766824167901143659479983 Product(1-1/p^4(p+1), p=2, 3, ...) 0.97801247818664622020182795997868268 Elbert Constant 0.97955746 Bendersky Constant 0.98850439774124690875110662385118666 Product(1-1/p^5(p+1), p=2, 3, ...) 0.98850439774124690875110662385118666 Quad. Class Number 0.98913363444699305224349030826633798 Shapiro-Drinfeld Constant x 2 0.9920479 Bendersky Constant 0.9932 Normalized Variance Of Convex Hull Perimeters 1.0 Baker Constant 1.0 Linnik Cconstant (Conjectured) 1.0 Favard Constant 1.00000000000000000000000000000157772 Zeta(99) 1.00000000000000000000000000000631089 Zeta(97) 1.00000000000000000000000000002524355 Zeta(95) 1.00000000000000000000000000010097420 Zeta(93) 1.00000000000000000000000000040389678 Zeta(91) 1.00000000000000000000000000161558713 Zeta(89) 1.00000000000000000000000000646234854 Zeta(87) 1.00000000000000000000000002584939414 Zeta(85) 1.00000000000000000000000010339757657 Zeta(83) 1.00000000000000000000000041359030628 Zeta(81) 1.00000000000000000000000165436122511 Zeta(79) 1.00000000000000000000000661744490042 Zeta(77) 1.00000000000000000000002646977960170 Zeta(75) 1.00000000000000000000010587911840680 Zeta(73) 1.00000000000000000000042351647362728 Zeta(71) 1.00000000000000000000169406589450980 Zeta(69) 1.00000000000000000000677626357804519 Zeta(67) 1.00000000000000000002710505431223469 Zeta(65) 1.00000000000000000010842021724942414 Zeta(63) 1.00000000000000000043368086900206505 Zeta(61) 1.00000000000000000173472347604757657 Zeta(59) 1.00000000000000000693889390454415370 Zeta(57) 1.00000000000000002775557562136124173 Zeta(55) 1.00000000000000011102230251410661337 Zeta(53) 1.00000000000000044408921031438133642 Zeta(51) 1.00000000000000177635684357912032747 Zeta(49) 1.00000000000000710542739521085271288 Zeta(47) 1.00000000000002842170976889301855455 Zeta(45) 1.00000000000011368684076802278493491 Zeta(43) 1.00000000000045474737830421540267991 Zeta(41) 1.00000000000181898965030706594758483 Zeta(39) 1.00000000000727595983505748101452087 Zeta(37) 1.00000000002910385044497099686929425 Zeta(35) 1.00000000011641550172700519775929738 Zeta(33) 1.00000000046566290650337840729892333 Zeta(31) 1.00000000186265972351304900640390995 Zeta(29) 1.00000000745071178983542949198100417 Zeta(27) 1.00000002980350351465228018606370507 Zeta(25) 1.00000011921992596531107306778871888 Zeta(23) 1.00000047693298678780646311671960437 Zeta(21) 1.00000190821271655393892565695779510 Zeta(19) 1.00000763719763789976227360029356303 Zeta(17) 1.00003058823630702049355172851064506 Zeta(15) 1.00012271334757848914675183652635740 Zeta(13) 1.00049418860411946455870228252646994 Zeta(11) 1.00099457512781808533714595890031902 Pi^10/93555 1.00099457512781808533714595890031902 Sum(1/n^10, n=1..Inf) 1.00099457512781808533714595890031902 Zeta(10) 1.00200839282608221441785276923241206 Zeta(09) 1.00200839282608221441785276923241206 Sum(1/n^9, n=1..Inf) 1.00407735619794433937868523850865247 Sum(1/n^8, n=1..Inf) 1.00407735619794433937868523850865247 Zeta(08) 1.00407735619794433937868523850865247 Pi^8/9450 1.0074347569 DeVicci Tesseract Constant 1.00834927738192282683979754984979676 Zeta(07) 1.00834927738192282683979754984979676 Sum(1/n^7, n=1..Inf) 1.0149416064 Gieseking Constant 1.0149416064 Pi*ln(beta) 1.01734306198444913971451792979092053 Pi^6/945 1.01734306198444913971451792979092053 Sum(1/n^6, n=1..Inf) 1.01734306198444913971451792979092053 Zeta(06) 1.03034552421621083244155243754414239 e^Pi/Pi^e 1.03064083410071293588177609411693684 Levy Constant 1.03064083410071293588177609411693684 Pi^(2)/(6*ln(2)*ln(10)) 1.03064083410071293588177609411693684 Continued Fraction Constant (Base 10) 1.0309167521 Bendersky Constant 1.034653881897438 gamma + Sum((Log(1-1/p)+ 1/(p-1) with p prime) 1.034653881897438 Hadamard-La-Vallee-Poussin Constant 1.034653881897438 Meissel-Mertens Constant 1.034653881897438 Pi/(2*Log(1+2^(1/2))) 1.03692775514336992633136548645703417 Sum(1/n^5, n=1..Inf) 1.03692775514336992633136548645703417 Zeta(05) 1.04719755119659774615421446109316763 Pi/3 1.0478314475 Quadratic Recurrence Constant 1.05158387343685177585821211308175257 Geometric Probability Constant (Center, Unit 07-Cube) 1.08232323371113819151600369654116790 Pi^4/90 1.08232323371113819151600369654116790 Sum(1/n^4, n=1..Inf) 1.08232323371113819151600369654116790 Zeta(04) 1.08586087978647216962688676281718069 Psi(3/4) (Negative) 1.0873780254 Feller Coin Tossing Constant 1.0894898722 G / Pi + 1/2 1.0894898722 Wilbraham-Gibbs Constant 1.09174406370390610145415947333389232 G^(-1) 1.09187704120961267827611097947763826 Khintchine Harmonic Mean K(-10) 1.0978510391 B3 1.09861228866810969139524523692252570 ln(3) 1.09864196439415648573466891734359621 Paris Constant 1.09868580552518701 Lengyel Constant 1.10254313667072801383609340252256835 Khintchine Harmonic Mean K(-09) 1.1064957714 Copson-de Bruijn Constant 1.11283578889876424837523964373206241 (4*L)/(3*Pi) 1.11596440897871669061915641934534970 Khintchine Harmonic Mean K(-08) 1.1178641511 Goh-Schmutz Constant 1.12189961871586097735161517556754271 Geometric Probability Constant (Corner, Unit 04-Cube) 1.12816534024125998466120093945323219 Geometric Probability Constant (Center, Unit 08-Cube) 1.12878702990812596126090109025884201 Gamma(5/6) 1.13198824 Viswanath Random Fibonacci Constant 1.13332336395086579491028969490886836 Khintchine Harmonic Mean K(-07) 1.1373387363 Digital Search Tree Constant 1.14472988584940017414342735135305871 ln(Pi) 1.1481508398 Porter-Like Constant 1.14869835499703500679862694677792759 2^(1/5) 1.15655237442151442315260599874341005 Khintchine Harmonic Mean K(-06) 1.1587284730 Grazing Goat Constant 1.17520119364380145688238185059560082 Sinh(1) 1.17628081825991750654407033847403505 Salem Number Of Degree 10 (Smallest Known) 1.1789797444 Wilbraham-Gibbs Constant * 2 / Pi 1.18656911041562545282172297594723712 Khintchine-Levy Constant 1.18656911041562545282172297594723712 Levy Constant 1.18656911041562545282172297594723712 Pi^(2)/(12*ln(2)) 1.18836814750822358814296095862959359 Salem Number Of Degree 18 1.18900392646551315406236373277140340 Khintchine Harmonic Mean K(-05) 1.18920711500272106671749997056047592 2^(1/4) 1.1970816793 Quadtree Constant 1.1981402347 M 1.19967864025773383391636984864114194 Solution of e^(x)(x-1) = e^(-x)(x+1) 1.19985076600422470253891278584038250 Geometric Probability Constant (Center, Unit 09-Cube) 1.20002652398739151890296210041460157 Salem Number Of Degree 14 1.2013035599 Rosser Constant ^ (-1) 1.20205690315959428539973816151144999 A 1.20205690315959428539973816151144999 Apery Constant 1.20205690315959428539973816151144999 Sum(1/n^3, n=1..Inf) 1.20205690315959428539973816151144999 Zeta(03) 1.2087177033 Baxter Constant 1.22541670246517764512909830336289053 Gamma(3/4) 1.22674201072035324441763023045536166 C where C = (1-a)*(1-a^2)*(1-a^3)... and a = -1/phi^2 1.22674201072035324441763023045536166 C where Fibonacci factorial FF(n) = C * phi^(n*(n+1)/2)/sqrt(5)^n 1.22674201072035324441763023045536166 Fibonacci Factorial Constant 1.23129114888860356277478765127203371 Product(1+1/p(p^2-1), p=2, 3, ...) 1.23261354859312100396273169480790979 Salem Number Of Degree 20 1.23370055013616982735431137498451889 Pi^2/8 1.23370055013616982735431137498451889 Favard Constant 1.23566458038974730810516935153126348 Salem Number Of Degree 22 1.23631793180323048989909486980205455 Salem Number Of Degree 16 1.236839845 Feller Coin Tossing Constant 1.23696180942373005262622724445342257 Khintchine Harmonic Mean K(-04) 1.23750482121749060817102182998909238 Salem Number Of Degree 26 1.24072642365254139205614816157566566 Salem Number Of Degree 12 1.24573093961551732596668033664030508 3^(1/5) 1.25992104989487316476721060727822835 2^(1/3) 1.26010354035499092032164985233167817 Salem Number Of Degree 24 1.26185950714291487419905422868552171 Log(4)/Log(3) 1.26185950714291487419905422868552171 Von Koch Number 1.26185950714291487419905422868552171 ln(4)/ln(3) 1.26240663503625185427789711515933821 Geometric Probability Constant (Corner, Unit 05-Cube) 1.2640847353 Quadratic Recurrence Constant 1.26655850147152857161454711262964085 Product(1+1/(p+1)^2, p=2, 3, ...) 1.2672063606 Extreme Value Constant 1.26747441722093904077608546997178172 Geometric Probability Constant (Center, Unit 10-Cube) 1.28063815626775759670190253271067630 Salem Number Of Degree 08 1.28242712910062263687534256886979173 exp(-(1/2)(Zeta(1,2)/Pi^2)+ln(2Pi)/12+gamma/12) 1.28242712910062263687534256886979173 Glaisher-Kinkelin Constant 1.28509936365187655711742003451295314 Salem Number Of Degree 30 1.28519917920561216731219238391889657 Salem Number Of Degree 44 1.28540906476536376403030984827729274 Salem Number Of Degree 34 1.29128599706266354040728259059560054 Sum(1/n^n, n=1..Inf) 1.29192819501249250731151312779589147 Favard Constant 1.29192819501249250731151312779589147 Pi^3/24 1.29241865758242654628103122914023787 Salem Number Of Degree 40 1.29290072178010279463087059624386073 Salem Number Of Degree 46 1.29621065959330921685178317912537540 Salem Number Of Degree 38 1.29682137371495007745612585536973599 Salem Number Of Degree 28 1.29842983547511153832780542574027520 Salem Number Of Degree 36 1.2985395575 Bateman A Constant 1.302 Pattern-Free Word Constant 1.302 Square-Free Word Constant 1.30357726903429639125709911215255189 Conway Constant 1.30568 Apollonian Packing Constant 1.30637788386308069046861449260260571 Mills Constant 1.3070624971 Quadtree Constant 1.31102877714605990523241979494555971 Quarter-Lemniscate Arclength 1.31102877714605990523241979494555971 L/2 1.31350707868798576671733944707278683 Khintchine Harmonic Mean K(-03) 1.31823441578658847240234081664511312 Psi(2/3) (Negative) 1.32032363169373914785562422002911156 Twin Primes Constant * 2 1.32032363169373914785562422002911156 2*C2 1.32471795724474602596090885447809734 Pisot-Vijayaraghavan Number (Smallest) 1.32934038817913702047362561250585889 Pi^(1/2)*3/4 1.32934038817913702047362561250585889 Gamma(5/2) 1.33165786346763230564715239893250938 Geometric Probability Constant (Center, Unit 11-Cube) 1.3325822757 Meissel-Mertens Constant (Negative) 1.33851515197609676693819590201851354 e^(Catalan/Pi) 1.33851515197609676693819590201851354 e^(G/Pi) 1.33851515197609676693819590201851354 2D Monomer-Dimer Constant 1.33978415357434724659915258651488605 Totient Constant 1.33978415357434724659915258651488605 Product(1+1/p^2(p-1), p=2, 3, ...) 1.3505061 Quadratic Recurrence Constant 1.35411793942640041694528802815451379 Gamma(2/3) 1.35914091422952261768014373567633125 e/2 1.3679335007 Quadtree Constant 1.3694514039 Shallit Constant 1.3728134628 Hardy-Littlewood Constant * 2 1.3750649947 Meissel-Mertens Constant 1.3813564445 Beta 1.38629436111989061883446424291635314 Madelung's Constant of 01 Dimension 1.388235409 Choi-Nash Constant 1.38857408445734784253025407303078882 Geometric Probability Constant (Corner, Unit 06-Cube) 1.3905439387 Bateman B Constant 1.39287876366263672794882782583900145 Geometric Probability Constant (Center, Unit 12-Cube) 1.39548597247930273522950066356688807 Hard Hexagons Entropy Constant 1.39561242508608952862812531960258684 S[1, 2, (1, 1, n where n = 8, 14, 20, etc.)] 1.39561242508608952862812531960258684 e^(1/3) 1.4045759346 Complex Grothendieck Constant (Conjectured) 1.41421356237309504880168872420969808 2^(1/2) 1.41421356237309504880168872420969808 Pythagoras Constant 1.41421356237309504880168872420969808 S[1, (2)] 1.41645052229961463887554453213627138 3^(1/2)/(2*2^(1/2)-1)^(1/3) 1.41956288050548591931723586178973536 Product(1+1/(p^2+p-1), p=2, 3, ...) 1.4236003060 Extreme Value Constant 1.43599112417691743235598632995927222 Lebesgue Constant 1.43599112417691743235598632995927222 1/3+2*3^(1/2)/Pi 1.44224957030740838232163831078010959 3^(1/3) 1.44269504088896340735992468100189214 ln(2)^(-1) 1.44466786100976613365833910859643022 Iterated Exponential Constant 1.44466786100976613365833910859643022 e^(1/e) 1.45034032849563040605298307668069788 Khintchine Harmonic Mean K(-02) 1.45136923488338105 Soldner-Ramanujan Constant 1.45151352586734172763809895957173656 Geometric Probability Constant (Center, Unit 13-Cube) 1.45607494858268967139959535111654356 Backhouse Constant 1.457 Cube-Free Word Constant 1.457 Pattern-Free Word Constant 1.45867514538708189102164364506732970 1-ln(1-1/e) 1.46035450880958681288949915251529801 Zeta(1/2) (Negative) 1.46035450880958681288949915251529801 Sum(1/n^(1/2), n=1..Inf) 1.46163214496836234126265954232572133 Xm, s.t. Gamma'(Xm)=0 1.46459188756152326302014252726379039 Pi^(1/3) 1.4655712318 Moore Constant 1.46707807943397547289779848470722995 Porter Constant 1.4677424503 Feigenbaum Constant 1.4681911223 Product((1+p)^(1/p)), p=2, 3, ...) 1.48795066353227263159874911257871350 Zeta(2/3)/Zeta(2) (Negative) 1.498155 Quadratic Recurrence Constant 1.5028368010 Quadratic Recurrence Constant 1.5030480824 Hard Square Entropy Constant 1.50408610425935421758852543407243465 Geometric Probability Constant (Corner, Unit 07-Cube) 1.50685 Nagel Constant 1.50786499932527832986742753100810207 Geometric Probability Constant (Center, Unit 14-Cube) 1.5078747554 Greenfield-Nussbaum Constant 1.5163860592 Pólya Random Walk Constant 1.5217315350 Bateman-Stemmler Constant 1.52995403705719287491319417231 W2 Constant 1.53960071783900203869106341467188655 Lieb Square Ice Constant 1.53960071783900203869106341467188655 (4/3)^(3/2) 1.5422197217 Madelung's Planar Hexagonal Lattice Constant 1.54308063481524377847790562075706168 Cosh(1) 1.5513875245 Calabi Triangle Constant 1.5557712501 Feigenbaum Constant 1.56218114274550962819170056701402446 Geometric Probability Constant (Center, Unit 15-Cube) 1.57079632679489661923132169163975144 Pi/2 1.57079632679489661923132169163975144 Favard Constant 1.58496250072115618145373894394781651 ln(3)/ln(2) 1.58496250072115618145373894394781651 Log(3)/Log(2) 1.60140224354988761393325 Int(x^(1/2)/Log(1-x),x=0..1) (Negative) 1.6066951524 Digital Search Tree Constant 1.60943791243410037460075933322618764 ln(5) 1.61127355610152924819375450716268500 Geometric Probability Constant (Corner, Unit 08-Cube) 1.61466801581645243965853980921756039 Geometric Probability Constant (Center, Unit 16-Cube) 1.61554262671282472386792333275861809 Madelung's Constant of 02 Dimensions 1.61803398874989484820458633436563812 (1+5^(1/2))/2 1.61803398874989484820458633436563812 Golden Ratio 1.61803398874989484820458683436563812 phi 1.61803398874989484820458683436563812 S[1, (1)] 1.6222705028 Odlyzko-Wilf Constant 1.628160129718917 Flajolet-Martin Constant 1.628160129718917 Product((2*n/(2*n+1))^((-1)^t(n)),n = 1 .. Inf) 1.628160129718917 Flajolet Constant 1.63661632335126086856965800392186367 Sum(1/(p*ln(p),p=2, 3, ...) 1.64493406684822643647241516664602519 Pi^2/6 1.64493406684822643647241516664602519 Sum(1/n^2, n=1..Inf) 1.64493406684822643647241516664602519 Zeta(02) 1.64872127070012814684865078781416357 S[1, 1, (1, 1, n where n = 5, 9, 13, etc.)] 1.64872127070012814684865078781416357 e^(1/2) 1.6616879496 Quadratic Recurrence Constant 1.66549906848095197739185972682145184 Geometric Probability Constant (Center, Unit 17-Cube) 1.6824415102 Krätzel-Shiu Cube-Full Constant C3 1.6903029714 Feigenbaum Constant 1.70521114010536776428855145343450816 Niven Constant 1.70521114010536776428855145343450816 1+Sum(1-1/Zeta(n),n=2..Inf) 1.71172160116918907115859848346686633 Geometric Probability Constant (Corner, Unit 09-Cube) 1.71482193996503302513569036974516260 Geometric Probability Constant (Center, Unit 18-Cube) 1.73205080756887729352744634150587237 3^(1/2) 1.73205080756887729352744634150587237 S[1, (1, 2)] 1.73245471460063347358302531586082968 gamma^(-1) 1.74540566240734686349459630968366107 Khintchine Harmonic Mean K(-01) 1.74756459463318219063621203554439740 Madelung's Constant of 03 Dimensions (Negative) 1.7579327566 Infinite Nested Radical 1.7587436279 Infinite Product Constant 1.76276353735510745071230433148620891 Geometric Probability Constant (Center, Unit 19-Cube) 1.76322283435189671022520177695170708 1/Omega Number 1.76322283435189671022520177695170708 1/W(1) 1.77108 Odlyzko-Rains Constant (Negative) 1.77245385090551602729816748334114518 Gamma(1/2) 1.77245385090551602729816748334114518 Pi^(1/2) 1.77245385090551602729816748334114518 Carlson-Levin Constant 1.78107241799019798523650410310717955 e^(gamma) 1.7818046151 Power Series Constant (Conjectured) 1.78221397819136911177441345297254934 Pi/(2*ln(1+2^(1/2))) 1.78221397819136911177441345297254934 Real Grothendieck Constant (Conjectured) 1.78221397819136911177441345297254934 Grothendieck Majorant 1.78723165018296593301327489033700839 Komornik-Loreti Constant 1.79162281206959342473054708934298243 Dimer Constant 1.79162281206959342473054708934298243 e^(2*G/Pi) 1.80656662721424773295778362653516729 Geometric Probability Constant (Corner, Unit 10-Cube) 1.80943389741342982175418926199795825 Geometric Probability Constant (Center, Unit 20-Cube) 1.8228252496 Masser-Gramain Constant (Conjectured) 1.83125898493713148534217339787378163 Feigenbaum Constant 1.83377265168027139624564858944152359 Solution Of Zeta(X) = X 1.83787706640934548356065947281123528 ln(2*Pi) 1.83928675521416113255185256465328660 Tribonacci Constant 1.83939908404504706624730547956723048 Madelung's Constant of 04 Dimensions (Negative) 1.84420498063339369170569054749422997 Landau-Kolmogorov Constant 1.84420498063339369170569054749422997 3^(1/2)/(2*(2^(1/2)-1))^(1/3) 1.84775906502257351225636637879357657 Self-Avoiding-Walk Constant (Conjectured) 1.84775906502257351225636637879357657 (2+2^(1/2))^(1/2) 1.85193705198246617036105337015799136 Gibbs Constant 1.85193705198246617036105337015799136 Si(Pi) 1.85193705198246617036105337015799136 Wilbraham-Gibbs Constant 1.85407467730137191843385034719526005 L/2^(1/2) 1.85492916992076305696862792170805330 Geometric Probability Constant (Center, Unit 21-Cube) 1.8602 Average Degree Of Root In Identity Trees 1.8823126444 Geometric Probability Constant 1.89665656149897172914764116754947017 Geometric Probability Constant (Corner, Unit 11-Cube) 1.89933395505653151062225949943228677 Geometric Probability Constant (Center, Unit 22-Cube) 1.9021605824 Brun Constant 1.9081456268 Beta^2 1.90933781561876855952014379843362395 Madelung's Constant of 05 Dimensions 1.9276909638 Feigenbaum Constant 1.9287800 Wright Constant 1.940215351 Two Dimensional Monomer-Dimer Constant 1.94272315794543421897315820708357718 Geometric Probability Constant (Center, Unit 23-Cube) 1.9435964368 Euler Totient Function Asymptotic Constant 1.94591014905531330510535274344317973 ln(7) 1.96351002602142347944097633299875557 Psi(1/2) (Negative) 1.96555703900907828131231355573518537 Madelung's Constant of 06 Dimensions (Negative) 1.98264425007014380394985428743829244 Geometric Probability Constant (Corner, Unit 12-Cube) 1.98516347695165486278321811969002011 Geometric Probability Constant (Center, Unit 24-Cube) 2.006 Sum(1/(q*ln(q)) Over Prime Powers q 2.01240598979798606439503063580430044 Madelung's Constant of 07 Dimensions 2.02671461043234115348219129015291352 Geometric Probability Constant (Center, Unit 25-Cube) 2.05003 Whitney-Mikhlin Extension Constant 2.05246682726927122817633779917338399 Madelung's Constant of 08 Dimensions (Negative) 2.0531987328 Semi-Meander Critical Exponent (Conjectured) 2.0649 Erdös Reciprocal Sum Constant (Lower bound) 2.06504518249875350809269563314269721 Geometric Probability Constant (Corner, Unit 13-Cube) 2.06743024443831268706709868680498951 Geometric Probability Constant (Center, Unit 26-Cube) 2.0742250447 Product(1+1/n^5, n=1..Inf) 2.07808692123502753760132260611779577 1/ln(phi) 2.08739431267374218624457764047421058 Madelung's Constant of 09 Dimensions 2.10735886809234372044200605321641890 Geometric Probability Constant (Center, Unit 27-Cube) 2.1102339661 Brown-Wang Constant 2.11831050138482362429145797837558170 Madelung's Constant of 10 Dimensions 2.14427491988170619443678370512182900 Geometric Probability Constant (Corner, Unit 14-Cube) 2.14601010324383144672492563492842746 Madelung's Constant of 11 Dimensions 2.14654445203158267146059478594868017 Geometric Probability Constant (Center, Unit 28-Cube) 2.158435 Mian-Chowla Reciprocal Sum (Lower Bound) 2.158677 Mian-Chowla Reciprocal Sum (Upper Bound) 2.16395341373865284877000401021802312 S[2, 6, 10, 14, 18, 22, etc.] 2.16395341373865284877000401021802312 (1+e^(-1))/(e^(-1)-1) (Negative) 2.17107583567180339178612209761536068 Madelung's Constant of 12 Dimensions 2.17325431251955413823708984043822372 Zeta(3/2)/Zeta(3) 2.18502701702007390920802533767466978 Geometric Probability Constant (Center, Unit 29-Cube) 2.19328005073801545655976965927873822 e^(Pi/4) 2.19394722663803500419507450913875582 Madelung's Constant of 13 Dimensions 2.2001610580 Lüroth Analog of Khintchine Constant 2.20385659643785978787282831648008966 Product(1+1/p^2(p-1), p=2, 3, ...)*Pi^2/6 2.20385659643785978787282831648008966 Totient Constant 2.21496368855843296314003051930668664 Madelung's Constant of 14 Dimensions 2.21953166887197 Moving Sofa Constant 2.22067432945660374186993055578568209 Geometric Probability Constant (Corner, Unit 15-Cube) 2.22284311371509547918433055921183524 Geometric Probability Constant (Center, Unit 30-Cube) 2.2247514809 Robinson C Constant 2.23439258374969844807585029381038486 Madelung's Constant of 15 Dimensions 2.23606797749978969640917366873127624 S[2, (4)] 2.23606797749978969640917366873127624 5^(1/2) 2.25244813503955740152885642371360503 Madelung's Constant of 16 Dimensions 2.26002622999093923724814237116750060 Geometric Probability Constant (Center, Unit 31-Cube) 2.26930453765447970260512573486649076 Madelung's Constant of 17 Dimensions 2.28510527781503226669086631195247457 Madelung's Constant of 18 Dimensions 2.29452716097767478962467571462226292 Geometric Probability Constant (Corner, Unit 16-Cube) 2.2948565916 Abelian Group Enumeration Constant 2.29660713875986342570912152282528776 Geometric Probability Constant (Center, Unit 32-Cube) 2.29996989965861593845550552759892921 Madelung's Constant of 19 Dimensions 2.302566137163630 Product((n/(n+1))^((-1)^t(n)),n = 1 .. Inf) 2.302566137163630 Flajolet Constant 2.30258509299404568401799145468436421 ln(10) 2.3038421962 Robinson A Constant 2.3136987039 3D Lattice Sum Analog Of Euler Constant 2.31399901326838158444075128060239110 Madelung's Constant of 20 Dimensions 2.32727806386617649023263921819164152 Madelung's Constant of 21 Dimensions 2.33261419658363010434211251764514462 Geometric Probability Constant (Center, Unit 33-Cube) 2.33988021157699731585377502242512407 Madelung's Constant of 22 Dimensions 2.35186856157288661694683971095803466 Madelung's Constant of 23 Dimensions 2.36329791235804591258340783568707050 Madelung's Constant of 24 Dimensions 2.36607263054525164233711500843961378 Geometric Probability Constant (Corner, Unit 17-Cube) 2.36807360132825071270825520144575038 Geometric Probability Constant (Center, Unit 34-Cube) 2.37313822083125090564344595189447424 Levy Constant 2.37313822083125090564344595189447424 Pi^(2)/(6*ln(2)) 2.37421614159658947496232753509025490 Madelung's Constant of 25 Dimensions 2.3768417063 Integer Chebyshev Constant (Conjectured) 2.38466531580397252584706207642213482 Madelung's Constant of 26 Dimensions 2.39468258720326735518921692552479825 Madelung's Constant of 27 Dimensions 2.40300961552690254490505744014382337 Geometric Probability Constant (Center, Unit 35-Cube) 2.40430092477572674264868104812749839 Madelung's Constant of 28 Dimensions 2.4048255576 First Zero of J0(x) 2.41354971486710635015235485574998676 Madelung's Constant of 29 Dimensions 2.42245525823333931662133784944208310 Madelung's Constant of 30 Dimensions 2.42818979209887032873604143617914636 Product(1+1/n^3,n=1..Inf) 2.42818979209887032873604143617914636 Cosh((1/2) 3^(1/2) Pi)/Pi 2.43104118417369693140311976634772090 Madelung's Constant of 31 Dimensions 2.43551464492220167063123548438641369 Geometric Probability Constant (Corner, Unit 18-Cube) 2.43744476087068533882978666436950014 Geometric Probability Constant (Center, Unit 36-Cube) 2.43932879776139286803153493652843767 Madelung's Constant of 32 Dimensions 2.44733737269521285921933628399090437 Madelung's Constant of 33 Dimensions 2.44758073623365823109099570422300521 Zeta(2/3) (Negative) 2.44948974278317809819728407470589139 S[2, (2, 4)] 2.44948974278317809819728407470589139 6^(1/2) 2.45508439964946956002915510002440137 Madelung's Constant of 34 Dimensions 2.46258579797259235776773109900151569 Madelung's Constant of 35 Dimensions 2.46985609701875352934442107890864650 Madelung's Constant of 36 Dimensions 2.47139998826261469588984501098865327 Geometric Probability Constant (Center, Unit 37-Cube) 2.47690859217752128696429587456563739 Madelung's Constant of 37 Dimensions 2.4832535361 Otter Tree Enumeration Constant 2.48375547970979135041624931627978757 Madelung's Constant of 38 Dimensions 2.49040797374227680263599372166993161 Madelung's Constant of 39 Dimensions 2.49687640817150687826470468214351504 Madelung's Constant of 40 Dimensions 2.4996161129 Abelian Group Enumeration Constant 2.50290787509589282228390287321821579 Feigenbaum Alpha Constant (Negative) 2.50290787509589282228390287321821579 Feigenbaum Reduction Parameter 2.50302870274476946935937388916903290 Geometric Probability Constant (Corner, Unit 19-Cube) 2.50317032574694388247934162252612694 Madelung's Constant of 41 Dimensions 2.50489482708666779652681274144321858 Geometric Probability Constant (Center, Unit 38-Cube) 2.50662827463100050241576528481104525 (2*Pi)^(1/2) 2.50929855621522920005148120196693243 Madelung's Constant of 42 Dimensions 2.51526928509369022497328611247656147 Madelung's Constant of 43 Dimensions 2.5175403550 Identity Trees Enumeration Constant 2.52109011438569337153663752253114433 Madelung's Constant of 44 Dimensions 2.52676811634131123815490377113392055 Madelung's Constant of 45 Dimensions 2.53230988119481764882441590643851775 Madelung's Constant of 46 Dimensions 2.53772155966847418828503742640188754 Madelung's Constant of 47 Dimensions 2.53794751671565053173304989293340454 Geometric Probability Constant (Center, Unit 39-Cube) 2.54300890091420758541223791642153029 Madelung's Constant of 48 Dimensions 2.54817728646656892277053114817796569 Madelung's Constant of 49 Dimensions 2.55323176069820570298188317416270563 Madelung's Constant of 50 Dimensions 2.55817705820007898662955580797954700 Madelung's Constant of 51 Dimensions 2.56301762845049808118913650918449053 Madelung's Constant of 52 Dimensions 2.56775765808784852081651705531189752 Madelung's Constant of 53 Dimensions 2.56876715077947850804966775918858530 Geometric Probability Constant (Corner, Unit 20-Cube) 2.57057512277505148565689176441871607 Geometric Probability Constant (Center, Unit 40-Cube) 2.57240109106013285467399621297012883 Madelung's Constant of 54 Dimensions 2.57695164688888729296481623855257382 Madelung's Constant of 55 Dimensions 2.58141283725466524707056453311046059 Madelung's Constant of 56 Dimensions 2.58498175957925321706589358738317116 Sierpinski Constant 2.58578798108525718745358244603067638 Madelung's Constant of 57 Dimensions 2.59008021830545728319118841981141734 Madelung's Constant of 58 Dimensions 2.59429252238792182157415818152845003 Madelung's Constant of 59 Dimensions 2.59807621135331594029116951225880855 S[2, (1, 1, 2, 20, 2, 1, 1, 4)] 2.59807621135331594029116951225880855 (27/4)^(1/2) 2.59842771182801977319773314922147221 Madelung's Constant of 60 Dimensions 2.60248846065115822180533115581672353 Madelung's Constant of 61 Dimensions 2.60279364026893790034940149386371644 Geometric Probability Constant (Center, Unit 41-Cube) 2.60647730804854548266231541070359775 Madelung's Constant of 62 Dimensions 2.61039666722645650137758760423513234 Madelung's Constant of 63 Dimensions 2.61237534868548834334856756792407163 Sum(1/n^(3/2), n=1..Inf) 2.61237534868548834334856756792407163 Zeta(3/2) 2.61424883354455633932113410709845058 Madelung's Constant of 64 Dimensions 2.61803398874989484820458683436563812 S[2, (1)] 2.61803398874989484820458683436563812 Golden Root 2.61803398874989484820458683436563812 phi+1 2.62205755429211981046483958989111941 Half-Lemniscate Arclength 2.62205755429211981046483958989111941 1/2*Pi^(3/2)/Gamma(3/4)^2*2^(1/2) 2.62205755429211981046483958989111941 Lemniscate Constant 2.62205755429211981046483958989111941 L 2.62205755429211981046483958989111941 Gauss Constant 2.63286325093935631503907317167093893 Geometric Probability Constant (Corner, Unit 21-Cube) 2.63461808533842838483418221703533760 Geometric Probability Constant (Center, Unit 42-Cube) 2.6381585303 Self-Avoiding-Walk Connective Constant (Estimate) 2.63879492733573453578828167564881131 Stieltjes 42th Constant (Neg) 2.64575131106459059050161575363926043 7^(1/2) 2.64575131106459059050161575363926043 S[2, (1, 1, 1, 4)] 2.66514414269022518865029724987313985 2^(2^(1/2)) 2.66514414269022518865029724987313985 Gelfund-Schneider Number 2.66606257714796934644827026929959885 Geometric Probability Constant (Center, Unit 43-Cube) 2.67411272557002150896041183044548804 Product(1+1/(p^2-p-1), p=2, 3, ...) 2.67893853470774763365569294097467764 Gamma(1/3) 2.6789638796 Shanks Constant * 4 2.68315090047407180144993675864514825 Feigenbaum Constant 2.68545200106530644530971483548179569 Khintchine Constant 2.69543437155919168240308891778545799 Geometric Probability Constant (Corner, Unit 22-Cube) 2.69714041116758456785393070908646640 Geometric Probability Constant (Center, Unit 44-Cube) 2.71828182845904523536028747135266250 S[2, 1, 2, (1, 1, n where n = 4, 6, 8 etc.)] 2.71828182845904523536028747135266250 e 2.72069904635132677589111738646323360 Pi/2*3^(1/2) 2.72786412493109350111410971709481349 Geometric Probability Constant (Center, Unit 45-Cube) 2.75658452312697639362839358515511316 Geometric Probability Constant (Corner, Unit 23-Cube) 2.75824555719362425271218993706187613 Geometric Probability Constant (Center, Unit 46-Cube) 2.78829590128073372269206825541834818 Geometric Probability Constant (Center, Unit 47-Cube) 2.80777024202851936522150118655777293 Fransen-Robinson Constant 2.81640639603292158356804218401266488 Geometric Probability Constant (Corner, Unit 24-Cube) 2.81802575331142932130688061800979132 Geometric Probability Constant (Center, Unit 48-Cube) 2.82641999706759157554639174723695375 Murata Constant 2.82641999706759157554639174723695375 Product(1+1/(p-1)^2, p=2, 3, ...) 2.82842712474619009760337744841939616 8^(1/2) 2.82842712474619009760337744841939616 S[2, (1, 4)] 2.84744515588463006896168417448599640 Geometric Probability Constant (Center, Unit 49-Cube) 2.85824859571922043243013466072635088 Product(1-(3p-1)/(p-1)^3, p=5, 7, ...)*(9/2) 2.85824859571922043243013466072635088 Hardy-Littlewood D Constant 2.87498301497549019254021329626064489 Geometric Probability Constant (Corner, Unit 25-Cube) 2.87656363774010275955473090932498475 Geometric Probability Constant (Center, Unit 50-Cube) 2.90539024983822805398768940522823551 Geometric Probability Constant (Center, Unit 51-Cube) 2.93238909470162986322348843746314449 Geometric Probability Constant (Corner, Unit 26-Cube) 2.93393359824611380857319302189124015 Geometric Probability Constant (Center, Unit 52-Cube) 2.95576528565199497471481752412319459 Tree-Growth Constant 2.95576528565199497471481752412319459 Otter Tree Enumeration Constant 2.96220187416896340654931519854321733 Geometric Probability Constant (Center, Unit 53-Cube) 2.98869216048947953667711656198981979 Geometric Probability Constant (Corner, Unit 27-Cube) 2.99020288142390078401652485424510391 Geometric Probability Constant (Center, Unit 54-Cube) 2.9904703993 Goh-Schmutz Constant 3.01794406161756057657656599094014587 Geometric Probability Constant (Center, Unit 55-Cube) 3.04395348145212114237988443948806224 Geometric Probability Constant (Corner, Unit 28-Cube) 3.04543251725776980002504496871204172 Geometric Probability Constant (Center, Unit 56-Cube) 3.07267503300282865790172034545288264 Geometric Probability Constant (Center, Unit 57-Cube) 3.09822885353707461434493975274082758 Geometric Probability Constant (Corner, Unit 29-Cube) 3.09967809522861950022705994972345382 Geometric Probability Constant (Center, Unit 58-Cube) 3.12644791007351408799472988230965659 Geometric Probability Constant (Center, Unit 59-Cube) 3.13203378002080632299641907428726885 Psi(1/3) (Negative) 3.14159265358979323846264338327950288 Archimedes Constant 3.14159265358979323846264338327950288 Pi 3.1477551485 Quadratic Residues Constant 3.15156926080252700416931936953953074 Geometric Probability Constant (Corner, Unit 30-Cube) 3.15299042010337369508761343870728980 Geometric Probability Constant (Center, Unit 60-Cube) 3.16227766016837933199889354443271853 S[3, (6)] 3.16227766016837933199889354443271853 10^(1/2) 3.17931131972347708458302409052316396 Geometric Probability Constant (Center, Unit 61-Cube) 3.1962206165 Plate Constant 3.20402143733922863709119704543325164 Geometric Probability Constant (Corner, Unit 31-Cube) 3.20541606945065827001751648637787272 Geometric Probability Constant (Center, Unit 62-Cube) 3.20991230072815767862974948177990516 Dimer Constant ^ 2 3.20991230072815767862974948177990516 e^(4*G/Pi) 3.23130990914702706712814610171702137 Geometric Probability Constant (Center, Unit 63-Cube) 3.2469796037 Tutte-Beraha Constant 3.2469796037 Silver Root 3.25562834750329008150093710187428204 Geometric Probability Constant (Corner, Unit 32-Cube) 3.25699787030615826291131305704583020 Geometric Probability Constant (Center, Unit 64-Cube) 3.27582291872181115978768188245384386 Levy Constant 3.27582291872181115978768188245384386 e^(Pi^2/(12*ln(2))) 3.3038421963 Robinson B Constant 3.30642959852749506140445674450494365 Geometric Probability Constant (Corner, Unit 33-Cube) 3.33437 Bumby Constant 3.35646179680124786263946192473222355 Geometric Probability Constant (Corner, Unit 34-Cube) 3.3643175781 Van Der Corput Constant 3.40575885694616715660381789774379648 Geometric Probability Constant (Corner, Unit 35-Cube) 3.40706916562725614221945826282718065 Magata Constant 3.4201328816 Meander Critical Exponent (Conjectured) 3.42981513013245864263455323784799901 Pi/G 3.4493588902 Robinson D Constant 3.45435227111594167475694238571425272 Geometric Probability Constant (Corner, Unit 36-Cube) 3.501838 R of Meander Connective Constant (Conjectured) 3.50227134460533381643508391954448690 Geometric Probability Constant (Corner, Unit 37-Cube) 3.54954340278245784698676458043542997 Geometric Probability Constant (Corner, Unit 38-Cube) 3.59619397349945833580342695419991805 Geometric Probability Constant (Corner, Unit 39-Cube) 3.61803398874989484820458683436563812 phi+2 3.61803398874989484820458683436563812 S[3, (1)] 3.61803398874989484820458683436563812 Tutte-Beraha Constant 3.62560990822190831193068515586767200 Gamma(1/4) 3.62759872846843570118815651528431146 2*Pi/3^(1/2) 3.64224694844321255401800455526864751 Geometric Probability Constant (Corner, Unit 40-Cube) 3.6746439660 Quadratic Residues Constant 3.68772472632443353202708318813338528 Geometric Probability Constant (Corner, Unit 41-Cube) 3.7038741039 Wilbraham-Gibbs Constant * 2 3.73264834034350032837140743054985805 Geometric Probability Constant (Corner, Unit 42-Cube) 3.77703757199356485771868385489834007 Geometric Probability Constant (Corner, Unit 43-Cube) 3.7962 Critical Activity Constant 3.82091105294968893340318739998634795 Geometric Probability Constant (Corner, Unit 44-Cube) 3.86428635653418398111773823713904318 Geometric Probability Constant (Corner, Unit 45-Cube) 3.9002649200 2D Lattice Sum Analog of Euler Constant 3.90718008003289239746769676642574572 Geometric Probability Constant (Corner, Unit 46-Cube) 3.92264613920915172747153144671459951 Zeta(1,1/2) (Negative) 3.94960791895687959001055166004053769 Geometric Probability Constant (Corner, Unit 47-Cube) 3.99158473419253161440046051719601491 Geometric Probability Constant (Corner, Unit 48-Cube) 3.9998 Erdös Reciprocal Sum Constant (Upper bound) 4.0180767046 Feigenbaum Constant 4.03312461285526948809457972065865094 Geometric Probability Constant (Corner, Unit 49-Cube) 4.062570 Klarner Lattice Animal Constant 4.07424092355388344017254479977066718 Geometric Probability Constant (Corner, Unit 50-Cube) 4.11494636668052704525984139874754900 Geometric Probability Constant (Corner, Unit 51-Cube) 4.15118086323741575716528556195953752 Product(1-(6p^2-4p+1)/(p-1)^4, p=5, 7, ...)*(27/2) 4.15118086323741575716528556195953752 Hardy-Littlewood E Constant 4.15525302026298223673773460209429803 Geometric Probability Constant (Corner, Unit 52-Cube) 4.19517238184869716208806969173031218 Geometric Probability Constant (Corner, Unit 53-Cube) 4.22745353337626540808953014609668358 Psi(1/4) (Negative) 4.23471540683249266417466312325143620 Geometric Probability Constant (Corner, Unit 54-Cube) 4.2472965459 Geometric Probability Constant 4.27389254359023278481448486873407247 Geometric Probability Constant (Corner, Unit 55-Cube) 4.30769230769230769230769230769230769 56/13 4.30769230769230769230769230769230769 S[4, 3, 4, Infinity] 4.30769230769230769230769230769230769 Korn Constant for 3D ball 4.3110704070 Binary Search Tree And Quadtree Constant 4.31271376573792186904580926586835802 Geometric Probability Constant (Corner, Unit 56-Cube) 4.35118860179859762960949752447314651 Geometric Probability Constant (Corner, Unit 57-Cube) 4.38932616252717942005795891167602849 Geometric Probability Constant (Corner, Unit 58-Cube) 4.42713516611538787409397278602218885 Geometric Probability Constant (Corner, Unit 59-Cube) 4.46462396147437530317038294174231379 Geometric Probability Constant (Corner, Unit 60-Cube) 4.50180054977129028925837386954891136 Geometric Probability Constant (Corner, Unit 61-Cube) 4.5278295661 Freiman Constant 4.53867260437721803276264140535138333 Geometric Probability Constant (Corner, Unit 62-Cube) 4.5678018826 Gasper Constant 4.57524748936742891393001019284184235 Geometric Probability Constant (Corner, Unit 63-Cube) 4.59084371199880305320475827592915200 Gamma(1/5) 4.61153227670032461283055250971129330 Geometric Probability Constant (Corner, Unit 64-Cube) 4.6592661225 Krätzel-Shiu Cube-Full Constant C1 4.66920160910299067185320382046620162 Feigenbaum Delta Constant 4.66920160910299067185320382046620162 Feigenbaum Bifurcation Velocity Constant 4.683907 Self-Avoiding-Walk Connective Constant (Estimate) 4.7300407448 Rod Constant 4.799891547 Three-Arc Approximation Of Beam Detection Constant 4.81047738096535165547303566670383313 e^(Pi/2) 4.8189264563 Two-Arc Approximation Of Beam Detection Constant 5.07234458991637249229894040479887753 Stieltjes 45th Constant (Neg) 5.14159265358979323846264338327950288 Beam Detection Constant 5.14159265358979323846264338327950288 Pi+2 5.16057621135331594029116951225880855 41/16+3*3^(1/2)/2 5.24411510858423962092967917978223883 Lemniscate Constant 5.24411510858423962092967917978223883 L 5.24411510858423962092967917978223883 Gamma(1/4)^2/(2pi)^(1/2) 5.24411510858423962092967917978223883 Lemniscate Arclength * 2 5.24411510858423962092967917978223883 L * 2 5.2569464048 D Maximizing Spherical Volume 5.26493031235502382881103285958033661 Stieltjes 43th Constant (Neg) 5.43656365691809047072057494270532500 e*2 5.43656365691809047072057494270532500 S[5, 2, 3, 2, (3, 1, n, 1, 3, n+2 where n = 2, 4, 6, etc.)] 5.56631600178023520425009689520772611 Gamma(1/6) 5.6493764966 Integer Chebyshev Constant (Conjectured) 5.8726188208 Krätzel-Shiu Cube-Full Constant C2 (Negative) 5.9679687038 Feigenbaum Constant 6.28318530717958647692528676655900577 Pi*2 6.58088599101792097085154240388648649 Froda Constant 6.58088599101792097085154240388648649 2^e 6.60991560909696581383997510659145398 Stieltjes 46th Constant 6.77404 Self-Avoiding-Walk Connective Constant (Estimate) 7.1879033516 John Constant (Conjectured) 7.18874588950352728234209482457766422 Stieltjes 44th Constant (Neg) 7.2569464048 D Maximizing Spherical Surface Area 7.2846862171 Feigenbaum Constant 7.38905609893065022723042746057500781 S[7, 2, (1, 1, n, 4*n+6, n+2 where n = 3, 6, 9 etc.)] 7.38905609893065022723042746057500781 e^2 7.7431319855 Digital Search Tree Constant 8.3494991320 Feigenbaum Constant 8.700036625208194 Kepler-Bouwkamp Constant 8.700036625208194 Product(Sec(Pi/n), n=3..Inf) 8.7210972 Feigenbaum Constant 8.83854 Self-Avoiding-Walk Connective Constant (Estimate) 9.0803731646 Hensley Constant 9.27738 Feigenbaum Constant 9.28902549192081891875544943595174506 1/(One-Ninth Constant) 9.28902549192081891875544943595174506 Varga Constant 9.2962468327 Feigenbaum Constant 9.37 3D Grötzsch Ring Constant 9.42477796076937971538793014983850865 Pi*3 9.86960440108935861883449099987615114 Pi^2 10.5101504239 Zagier Constant 10.7310157948230858039223079996654060 e^(Pi^2/(6*ln(2))) 10.7310157948230858039223079996654060 Levy Constant 10.87809 Self-Avoiding-Walk Connective Constant (Estimate) 11.0901699437494742410229341718281906 (11+5*5^(1/2))/2 11.0901699437494742410229341718281906 S[11, (11)] 12.262874 R^2 of Meander Connective Constant (Conjectured) 12.5663706143591729538505735331180115 Pi*4 14.1347251417346937904572519835624703 t1 where Zeta(s)=0 and s = 1/2 + it1 14.1347251417346937904572519835624703 Zeta Function 001st Zero 14.6475663016 Abelian Group Enumeration Constant (Negative) 15.1542622414792641897604302726299119 Iterated Exponential Constant 15.1542622414792641897604302726299119 e^e 15.3377230231024356717285601672257899 Kakeya Constant 19.1969118730278558004999227888946100 Stieltjes 51th Constant (Neg) 19.9990999791894757672664429846690445 e^(Pi)-Pi 20.0855369231876677409285296545817179 e^3 21.0220396387715549926284795938969028 Zeta Function 002nd Zero 21.0220396387715549926284795938969028 t2 where Zeta(s)=0 and s = 1/2 + it2 22.4591577183610454734271522045437350 Pi^e 22.6 4D Grötzsch Ring Constant 23.1406926327792690057290863679485474 e^Pi 25.0108575801456887632137909925628218 t3 where Zeta(s)=0 and s = 1/2 + it3 25.0108575801456887632137909925628218 Zeta Function 003rd Zero 29.576303 Feigenbaum Constant 30.4248761258595132103118975305840913 t4 where Zeta(s)=0 and s = 1/2 + it4 30.4248761258595132103118975305840913 Zeta Function 004th Zero 31.0062766802998201754763150671013952 Pi^(3) 32.9350615877391896906623689640749035 t5 where Zeta(s)=0 and s = 1/2 + it5 32.9350615877391896906623689640749035 Zeta Function 005th Zero 34.0397749821587482476611521122288754 Stieltjes 47th Constant 37.5861781588256712572177634807053328 t6 where Zeta(s)=0 and s = 1/2 + it6 37.5861781588256712572177634807053328 Zeta Function 006th Zero 40.9187190121474951873981269146332544 Zeta Function 007th Zero 43.3270732809149995194961221654068058 Zeta Function 008th Zero 48.0051508811671597279424727494275160 Zeta Function 009th Zero 49.7738324776723021819167846785637241 Zeta Function 010th Zero 52.9703214777144606441472966088809901 Zeta Function 011th Zero 55.247 Feigenbaum Constant 56.4462476970633948043677594767061276 Zeta Function 012th Zero 57.2957795130823208767981548141051703 180/Pi 59.3470440026023530796536486749922190 Zeta Function 013th Zero 60.8317785246098098442599018245240038 Zeta Function 014th Zero 65.1125440480816066608750542531837050 Zeta Function 015th Zero 67.0798105294941737144788288965222168 Zeta Function 016th Zero 69.5464017111739792529268575265547384 Zeta Function 017th Zero 72.0671576744819075825221079698261684 Zeta Function 018th Zero 75.7046906990839331683269167620303459 Zeta Function 019th Zero 77.1448400688748053726826648563046370 Zeta Function 020th Zero 78.6824797632425849560384842093884759 Stieltjes 48th Constant 79.3373750202493679227635928771162282 Zeta Function 021th Zero 82.9103808540860301831648374947706095 Zeta Function 022th Zero 84.7354929805170501057353112068277414 Zeta Function 023th Zero 87.4252746131252294065316678509192133 Zeta Function 024th Zero 88.8091112076344654236823480795093784 Zeta Function 025th Zero 92.4918992705584842962597252418106849 Zeta Function 026th Zero 94.6513440405198869665979258152081539 Zeta Function 027th Zero 95.8706342282453097587410292192467817 Zeta Function 028th Zero 98.8311942181936922333244201386223278 Zeta Function 029th Zero 101.317851005731391228785447940292309 Zeta Function 030th Zero 103.725538040478339416398408108695281 Zeta Function 031th Zero 105.446623052326094493670832414111809 Zeta Function 032th Zero 107.168611184276407515123351963086191 Zeta Function 033th Zero 111.029535543169674524656450309944350 Zeta Function 034th Zero 111.874659176992637085612078716770595 Zeta Function 035th Zero 114.320220915452712765890937276191080 Zeta Function 036th Zero 116.226680320857554382160804312064755 Zeta Function 037th Zero 118.6924619727 Abelian Group Enumeration Constant 118.790782865976217322979139702699824 Zeta Function 038th Zero 121.370125002420645918945532970499923 Zeta Function 039th Zero 122.946829293552588200817460330770016 Zeta Function 040th Zero 124.256818554345767184732007966129924 Zeta Function 041th Zero 125.844387631978469093364086964263455 Stieltjes 49th Constant 126.823602651322716596725253648657556 Stieltjes 50th Constant 127.516683879596495124279323766906076 Zeta Function 042th Zero 129.578704199956050985768033906179974 Zeta Function 043th Zero 131.087688530932656723566372461501349 Zeta Function 044th Zero 133.497737202997586450130492042640608 Zeta Function 045th Zero 134.756509753373871331326064157169736 Zeta Function 046th Zero 138.116042054533443200191555190282448 Zeta Function 047th Zero 139.736208952121388950450046523382461 Zeta Function 048th Zero 141.123707404021123761940353818475355 Zeta Function 049th Zero 143.111845807620632739405123868913930 Zeta Function 050th Zero 146.000982486765518547402507596424682 Zeta Function 051th Zero 147.422765342559602049521185010431506 Zeta Function 052th Zero 150.053520420784880351432467236959371 Zeta Function 053th Zero 150.925257612241466761852524678305628 Zeta Function 054th Zero 153.024693811198896198256544255185447 Zeta Function 055th Zero 156.112909294237867569750189310169195 Zeta Function 056th Zero 157.597591817594059887530503158498766 Zeta Function 057th Zero 158.849988171420498724174994775540271 Zeta Function 058th Zero 161.188964137596027519437344129369554 Zeta Function 059th Zero 163.030709687181987243311039000687995 Zeta Function 060th Zero 165.537069187900418830038919354874797 Zeta Function 061th Zero 167.184439978174513440957756246210379 Zeta Function 062th Zero 169.094515415568821489505871181431835 Zeta Function 063th Zero 169.911976479411698966699843595821792 Zeta Function 064th Zero 173.411536519591552959846118649345595 Zeta Function 065th Zero 174.754191523365725813378762455866918 Zeta Function 066th Zero 176.441434297710418888892641057860934 Zeta Function 067th Zero 178.377407776099977285830935414184426 Zeta Function 068th Zero 179.916484020256996139340036612051237 Zeta Function 069th Zero 182.207078484366461915407037226987799 Zeta Function 070th Zero 184.874467848387508800960646617234258 Zeta Function 071th Zero 185.598783677707471466527704268392647 Zeta Function 072th Zero 187.228922583501851991641540586131243 Zeta Function 073th Zero 189.416158656016937084852289099845324 Zeta Function 074th Zero 192.026656360713786547283631425583430 Zeta Function 075th Zero 193.079726603845704047402205794376055 Zeta Function 076th Zero 195.265396679529235321463187814862251 Zeta Function 077th Zero 196.876481840958316948622263914696208 Zeta Function 078th Zero 198.015309676251912424919918702208867 Zeta Function 079th Zero 201.264751943703788733016133427548173 Zeta Function 080th Zero 202.493594514140534277686660637864316 Zeta Function 081th Zero 204.189671803104554330716438386313685 Zeta Function 082th Zero 205.394697202163286025212379390693091 Zeta Function 083th Zero 207.906258887806209861501967907753644 Zeta Function 084th Zero 209.576509716856259852835644289886752 Zeta Function 085th Zero 211.690862595365307563907486730719294 Zeta Function 086th Zero 213.347919359712666190639122021072609 Zeta Function 087th Zero 214.547044783491423222944201072590691 Zeta Function 088th Zero 216.169538508263700265869563354498129 Zeta Function 089th Zero 219.067596349021378985677256590437241 Zeta Function 090th Zero 220.714918839314003369115592633906340 Zeta Function 091th Zero 221.430705554693338732097475119276078 Zeta Function 092th Zero 224.007000254604335211728875528504895 Zeta Function 093th Zero 224.983324669582287503782523680528657 Zeta Function 094th Zero 227.421444279679291310461436160659640 Zeta Function 095th Zero 229.337413305525348107760083306055740 Zeta Function 096th Zero 231.250188700499164773806186770010373 Zeta Function 097th Zero 231.987235253180248603771668539197862 Zeta Function 098th Zero 233.693404178908300640704494732569788 Zeta Function 099th Zero 236.524229665816205802475507955662979 Zeta Function 100th Zero 463.188923026716810808534358239236293 Stieltjes 52th Constant (Neg) 1340.65914437689218972710196366890890 Stieltjes 53th Constant (Neg) 2055.27581623197430457282515634565934 Stieltjes 56th Constant (Neg) 2572.45474040443551676357438174319454 Stieltjes 54th Constant (Neg) 3457.14120864538995380946230760854820 Stieltjes 55th Constant (Neg) 5333.66521050076434340371307226113672 Stieltjes 62th Constant 5372.28221320319128418183354595901433 Stieltjes 57th Constant 24019.3893776069881820486103598573641 Stieltjes 58th Constant 57424.3192969640755065710439431125539 Stieltjes 59th Constant 98543.2545901460421109321142894171153 Stieltjes 60th Constant 111670.957814941079338789340321156397 Stieltjes 61th Constant 390972.687313396395777542816434730101 Stieltjes 63th Constant (Neg) 1303180.71253251980857357826090877768 Stieltjes 64th Constant (Neg) 2845076.55260861211652324310023737087 Stieltjes 65th Constant (Neg) 2871566.94597246050990535730614752569 Stieltjes 68th Constant 4341905.13900151619841567026438369384 Stieltjes 67th Constant (Neg) 4540526.60973772410050922086700397125 Stieltjes 66th Constant (Neg) 26604908.5466867709242552191245193648 Stieltjes 69th Constant 79321663.1192990605921100187550698611 Stieltjes 70th Constant 166215134.046825435583982508376477503 Stieltjes 71th Constant 212655631.691854036951201924862715840 Stieltjes 73th Constant 255153258.308238993490984807827776899 Stieltjes 72th Constant 298767089.431166183859213984545623259 Stieltjes 74th Constant (Neg) 1919487427.73280239622962775772932790 Stieltjes 75th Constant (Neg) 5515574258.12922026942742603730645207 Stieltjes 76th Constant (Neg) 11483450987.9262560302596230875035482 Stieltjes 77th Constant (Neg) 17570152277.7772638616360861561852579 Stieltjes 78th Constant (Neg) 262537412640768743.999999999999250073 Ramanujan Number 262537412640768743.999999999999250073 e^(Pi*163^(1/2))